| Wallenhorst to Oberkirch | 263.72 mi (424.42 km) |
| Wallenhorst to Obernburg am Main | 180.15 mi (289.93 km) |
| Wallenhorst to Obernkirchen | 46.87 mi (75.43 km) |
| Wallenhorst to Oberschleissheim | 323.63 mi (520.83 km) |
| Wallenhorst to Oberstdorf | 355.85 mi (572.68 km) |
| Wallenhorst to Obertraubling | 296.07 mi (476.48 km) |
| Wallenhorst to Obertshausen | 161.67 mi (260.18 km) |
| Wallenhorst to Oberursel | 150.28 mi (241.86 km) |
| Wallenhorst to Ochsenfurt | 206.73 mi (332.70 km) |
| Wallenhorst to Ochsenhausen | 307.63 mi (495.08 km) |
| Wallenhorst to Ochtrup | 36.33 mi (58.47 km) |
| Wallenhorst to Odenthal | 98.80 mi (159.01 km) |
| Wallenhorst to Oelde | 36.15 mi (58.17 km) |
| Wallenhorst to Oelsnitz | 223.25 mi (359.29 km) |
| Wallenhorst to Oer-Erkenschwick | 58.76 mi (94.57 km) |
